Mechanical movement



Oct'. 31, 1939. w. J. WALLACE, JR 1 MECHANICAL MOVEMENT Filed Dec. 5,1938 2 Sheets-Sheet l Oct. 31, 1939,. w, J, WALLACE JR 2,178,443

' MECHANICAL MOVEMENT Filed Dec. 5, 1958 2 Sheets-Sheet 2 J II II IW 45A driving shaft I 2 extends through and is jourthe same and the drivinghead It in a clockwise 45 Patented Oct. 31, 1939 t 2,178,443

MECHANICAL MOVEMENT Walter- J. Wallace, Jr., Milwaukee, Wis. ApplicationDecember 3, 1938, Serial No. 243,782

r 6 Claims. (oi. iii-e07) My invention provides a new mechanicalmovethe, pinions ll are journaled on trunnions I 9 proment in the natureof an irreversible motion -jected from the driven head I5. The gears I6are transmission device and, generally stated, condiametrically spacedand mesh with the internal sists of the novel devices, combinationsof'devices ring gear and the pinions I? are diametrically 5 andarrangement of parts hereinafter described spaced and mesh with the twogears it. The :5 and defined in the claims. pinions or small gears, itwill be noted, are located A device of this kind will be foundserviceable with their axes much closer to the common axis in variousdifferent uses. For example, we will of the shafts I2 and I3 than arethe gears I6. say that it is an eflicient motion transmission de- Asshown, the ringgear 6 is a separately formed 10 vice in the steeringpost or in the wheel-steering element rigidly secured to the casesection 8 by lo mechanism of an automobile; it would serve as set-screws20. an efficient transmission element or part of means To insure andmaintain good axial alignment for operating elevators or liftingdevices; but with the shafts I2 and E3, the driving disc It isgenerally, it will serve the purpose of a power shown as provided withan axially projecting 1 transmission device wherein motion will beimtrunnion or reduced end 2i that is seated in an parted by powerapplied to the driving shaft or axial cavity of the driven head I5.

element, but the transmission mechanism will For illustrative purposes,the driving shaft I2 be locked against reverse movement or power isshown as provided with a driving pulley 22 applied to the driven shaftor element. and the driven shaft I3 is shown as provided The inventionis illustrated in the accompanywith a driven pulley 23; and the drivingpulley 2o ing drawings wherein like characters indicate 22 is shown asdriven from an electric motor 24 like parts throughout the severalviews. through a belt 25 that runs over said pulley 22 Referring to thedrawings: and over a pulley 26 on the shaft of the rotor Fig. 1 is aside elevation showing the irreversiof the motor 24. 5 ble transmissiondevice with its driving element As above indicated, the casing and hencethe 25 arranged to be. driven by an electric motor; ring gear should beheld against rotation. This Fig. 2 is a section taken on the line 2--2of anchoring of e s a own n s Fig. 1, showing the parts on a largerscale than accomplished by a fixed bracket 21 secured to in Fig. 1; asuitable non-movable support and rigidly at- 30 Fig. 3 is a sectiontaken on the lines-3 of tached to the case section 8; but it will beunder- 30 Fig. 2, some parts being shown in full; stood that thisanchoring of the said elements Fig. 4 is a section taken on the line 3-4of 7 n 8 ay be accilmplished n va us di Fig. 2, some parts being shownin full; and felent y Fig. 5 is a side elevation showing the irreversi-The operation of the non-reversible mechanical ble devic applied in thsteering mechanism f motion or transmission mechanism is substan- 35 anautomobile, tially as follows: When power is applied to the Referringfirst to the construction illustrated driving Shaft 12 in eitherrection, the driven in Figs. 1, 2, 3 and 4, the numeral 6 indicates anshaft I3 will be rotated in the same direction; internal ring gear thati l ted within and but when attempt is made to rotate the shaft I Zrigidly secured to a two-part casing 7-8 that is by power pp 17017118Shaft 3,1111% transmission 40 fixed against rotation. The case sectionsI$ mechanism will be locked against rotation. This are shown as rigidlyconnected by screws 9 and action will be made clear by the followingspecific said case sections, respectively, are provided illustration.For instance, assume that power is with axially projecting bearing hubsin and II. applied to the drive shaft I2 tending to rotate naled in thebearing hub Ill and the driven direction. Under power thus applied, thegears shaft I3 is extended through and journaled in 56 will be rotatedin a counter-clockwise directhe bearing hub ll. Within the casing, thedrivtion and their supporting trunnions I8 will be ing shaft I2 isprovided with a disc-like driving caused to travel orbits in a clockwisedirection head I4 and within said casing the driven shaft or in the samedirection as the motion imparted 50 I3 is provided with a disc-likedriven head I5. to the driving shaft I2. Under the above noted The twoheads I 4 and I5 are spaced to afford movement, the pinions N that meshwith the clearance for planetary gears I6 and planetary gears l6 will berotated in a clockwise direction, pinions H. The gears I6 are journaledon trunbut their supporting trunnions I9 will be caused nions I8projected from the driving head I4 while to travel orbits in a clockwisedirection, but on a 55 smaller orbit than that travelled by thetrunnions l8.

Now assume that attempt is made to rotate shaft !2 by power applied toshaft I3. Under such force, the pinions H will be simply forced orpressed toward the gears IE on lines of force directed more or lesstoward the axes of the gears l6 and trunnions l8, and this force simplypresses the gears l6 outward or toward the fixed internal gear 6,thereby locking the mechanism against the transmission of movement ineither direction.

The provision of the two planetary gears and two planetary pinions isimportant in the rendering of the transmission mechanism operative inthe same manner, regardless of the direction of the torque applied toandtending to rotate the one shaft or member from the other.

The internal mechanism of the mechanical movement device shown in Fig. 5is or may be the same as that described in connection with Figs. 1, 2, 3and 4. Here the fixed case which has the internal gear is indicated bythe characters Ia and 8a and the driving shaft H0. is incorporated inthe steering post 28 and is provided with a steering wheel 29. Thecasing is incorporated as a part of the steering post and the drivenshaft [3a is connected in the customary way to a lever 30 of the wheelconnection.

From the foregoing it will be understood that the device described iscapable of various modifications and various applications or uses withinthe scope of the invention herein disclosed and claimed.

What is claimed is:

1. In a device of the kind described, a nonrotary internal gear, adriving member, a driven member, said gear and driving and drivenmembers being in co-axial arrangement, a gear journaled to said drivingmember at a point eccentric to its axis and meshing with said internalgear, and a pinion journaled to said driven member at a point eccentricto its axis and meshing with said gear.

2. In a device of the kind described, a nonrotary internal gear, adriving member, a driven member, said internal gear and driving anddriven members being in co-axial arrangement, a pair of diametricallyspaced gears journaled to said driving member, and a pair ofdiametrically spaced pinions journaled to said driven member and meshingwith said gears.

3. In a device of the kind described, a nonrotary casing, an internalring gear secured to and exposed within said casing, driving and drivenshaft journaled in said casing in co-axial arrangement and providedwithin said casing, respectively, with driving and driven heads,diametrically spaced planetary gears journaled to said driving head andmeshing with said non-rotary ring gear, and diametrically spacedplanetary pinions journaled to said driven head and meshing with saidgears.

i. The structure defined in claim 2 in which the axes of said pinionsare located much nearer to the axes of said shafts than are the axes ofsaid gears.

5. The structure defined in claim 3 in which the axes of said pinionsare located much nearer to the axes of said shafts than are the axes ofsaid gears.

6. The structure defined in claim 3 in which said casing is made up ofseparable parts and said driving and driven heads are spaced to closelyembrace said ring gear, said planetary gears and said planetary pinions.

WALTER J. WALLACE, JR.

